droop

相空间重构的计算程序。可以为计算关联维数服务，或者要预测时也可用。(it is a program for phase space reconstruction, and it s for correlation dimension or for prediction)

基于matlab的数字pll实现，鉴相器，滤波器以及压控震荡器组成，具备良好的锁相功能，适合入门学习(Digital PLL based on MATLAB, phase detector, filter and voltage controlled oscillator, phase lock function has good, suitable for beginners to learn)

说明：  图像滤波，中值滤波，自适应，对比结果，噪声过滤(Image filtering, median filtering, adaptive, comparative results, medical image use)

django book for developing networking applications

用MATLAB计算Thue-Morse超晶格的光透射率(Calculated using MATLAB Thue-Morse superlattice light transmittance)

基于LANDMARC的定位系统上进行的算法复杂度的减小的优化，包括了具体的优化后系统的实现，误差前后对比，改文章还提出了一种adaptive的定位算法，更利于外部变化环境下(In wireless networks, a client’s locations can be estimated using signal strength received from signal transmitters. Static fingerprint-based techniques are commonly used for location estimation, in which a radio map is built by calibrating signal-strength values in the offline phase. These values, compiled into deterministic or probabilistic models, are used for online localization. However, the radio map can be outdated when signal-strength values change over time due to environmental dynamics, and repeated data calibration is infeasible or expensive. In this paper, we present a novel algorithm, known as Location Estimation using Model Trees (LEMT), to reconstruct a radio map by using real-time signal-strength readings received at the reference points. This algorithm can take real-time signal-strength values at each time point into account and make use of the dependency between the estimated locations and reference points. We show that this technique can effectively accommodat)

these are the Mtlab functions to plot the figures in the book Communication system (by Haykin)

上下游节制闸同时关闭时，下游闸门前和渠道中最大壅水位计算(Upstream and downstream at the same time controlling gate closed, the downstream gate and channel pre-calculation of the largest stop up the water level)

SPWM inverter with Matlab/simulink

本程序用于线性调频信号频率的测量，首先产生一加噪线性调频信号，再使用小波滤波去除噪声，最后使用希尔伯特变换法求信号的频率。(This procedure is used to measure the frequency of chirp signal, first generate a chirp signal with noise, and then use wavelet filtering to remove noise, and finally use the Hilbert transform method for the signal frequency.)